drachtio-server up to 0.8.18 UDP Message url_canonize2 heap-based overflow

HistoryDiffrelatejsonxmlCTI

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6.7	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in drachtio-server up to 0.8.18. Affected is the function url_canonize2 of the component UDP Message Handler. Such manipulation leads to heap-based overflow. This vulnerability is uniquely identified as CVE-2022-47517. The attack can be launched remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in drachtio-server up to 0.8.18. Affected by this issue is the function url_canonize2 of the component UDP Message Handler. The manipulation with an unknown input leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Impacted is confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in the libsofia-sip fork in drachtio-server before 0.8.19. It allows remote attackers to cause a denial of service (daemon crash) via a crafted UDP message that causes a url_canonize2 heap-based buffer over-read because of an off-by-one error.

The weakness was disclosed 12/18/2022 as 243. The advisory is available at github.com. This vulnerability is handled as CVE-2022-47517 since 12/18/2022. Technical details are known, but there is no available exploit.

Upgrading to version 0.8.19 eliminates this vulnerability. Applying the patch 22c1bd191f0acbf11f0c0fbea1845d9bf9dcd47e is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Name

drachtio-server

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.7

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: drachtio-server 0.8.19
Patch: 22c1bd191f0acbf11f0c0fbea1845d9bf9dcd47e

Timelineinfo

12/18/2022 🔍
12/18/2022 +0 days 🔍
12/18/2022 +0 days 🔍
04/18/2025 +852 days 🔍

Sourcesinfo

Advisory: 243
Status: Confirmed

CVE: CVE-2022-47517 (🔍)
GCVE (CVE): GCVE-0-2022-47517
GCVE (VulDB): GCVE-100-216182

Entryinfo

Created: 12/18/2022 08:31
Updated: 04/18/2025 02:21
Changes: 12/18/2022 08:31 (43), 01/14/2023 18:42 (11), 04/18/2025 02:21 (16)
Complete: 🔍
Cache ID: 216::103